tag:blogger.com,1999:blog-15628310.post7822344711654193085..comments2020-03-25T18:18:30.462-04:00Comments on Question of the day: Bert Goes to a PartyAnonymoushttp://www.blogger.com/profile/18153935609499338685noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-15628310.post-66604717906520539052012-10-25T18:24:20.571-04:002012-10-25T18:24:20.571-04:00NOTATION: Suppose x is ij and y is kl, where i, j,...NOTATION: Suppose x is ij and y is kl, where i, j, k, and l are what x and y are wearing. i, j, and k can be R or G, which stand for red and green. Then xy is ijkl.<br />1. A can't determine it, so BC can't be GGGG or RRRR<br />2. B can't determine it, so AC can't be GGGG or RRRR.<br />3. C could now determine, if AB were GGRR or RRGG, that he is RG. So AB is not GGRR or RRGG.<br />4. Since C can't determine it, it also can't be RRRR or GGGG.<br />5. If B has either RR or GG, A can have neither RR nor GG, because of steps 3 and 4, so A could find out that he is RG if B is either RR or GG.<br />6. He doesn't work this out, so B must be neither, and B must be RG.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-15628310.post-39276046503649089712012-07-10T14:02:13.039-04:002012-07-10T14:02:13.039-04:00Jim May is correct. Every time someone says "...Jim May is correct. Every time someone says "no" they are eliminating some possibilities. For example, when Al first says "No", he is really saying "I know that I don't have two green stamps because I don't see four red stamps on Bert and Casey's foreheads".jeffnoreply@blogger.comtag:blogger.com,1999:blog-15628310.post-15603529953538181062012-07-04T09:00:47.757-04:002012-07-04T09:00:47.757-04:00Whoa I'm so confused...Whoa I'm so confused...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-15628310.post-23754939357746238502012-07-03T18:08:05.795-04:002012-07-03T18:08:05.795-04:00red and green
(Jim May)red and green<br />(Jim May)Anonymousnoreply@blogger.com